package me.weyye.todaynews.utils;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.ActivityManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.media.AudioManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.text.TextUtils;
import android.util.Base64;
import android.view.WindowManager;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
/**
* 联网，格式化时间工具类
**/
public class CommonUtil {
/**
* MD5加密
*
* @param paramString
* @return
*/
public static String md5(String paramString) {
String returnStr;
try {
MessageDigest localMessageDigest = MessageDigest.getInstance("MD5");
localMessageDigest.update(paramString.getBytes());
returnStr = byteToHexString(localMessageDigest.digest());
return returnStr;
} catch (Exception e) {
return paramString;
}
}
public static void callPhone(Context context, final String phone) {
Intent phoneIntent = new Intent();
phoneIntent.setAction(Intent.ACTION_CALL);
phoneIntent.setData(Uri.parse("tel:" + phone));
context.startActivity(phoneIntent);
}
/**
* 将指定byte数组转换成16进制字符串
*
* @param b
* @return
*/
@SuppressLint("DefaultLocale")
public static String byteToHexString(byte[] b) {
StringBuffer hexString = new StringBuffer();
for (int i = 0; i < b.length; i++) {
String hex = Integer.toHexString(b[i] & 0xFF);
if (hex.length() == 1) {
hex = '0' + hex;
}
hexString.append(hex.toUpperCase());
}
return hexString.toString();
}
/**
* 判断当前网络是否可用
*
* @param context
* @return
*/
public static boolean isNetworkAvailable(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity == null) {
return false;
} else {
NetworkInfo info = connectivity.getActiveNetworkInfo();
return (info != null && info.isAvailable());
}
}
/**
* 获取现在时间
*
* @return 返回短时间字符串格式yyyy-MM-dd HH:mm:ss
*/
@SuppressLint("SimpleDateFormat")
public static String getStringDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(currentTime);
return dateString;
}
/**
* 根据手机的分辨率从 dp 的单位 转成为 px(像素)
*/
public static int dip2px(float dpValue) {
final float scale = Resources.getSystem().getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
/**
* 根据手机的分辨率从 px(像素) 的单位 转成为 dp
*/
public static int px2dip(Context context, float pxValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (pxValue / scale + 0.5f);
}
/**
* 将px值转换为sp值，保证文字大小不变
*
* @param pxValue （DisplayMetrics类中属性scaledDensity）
* @return
*/
public static int px2sp(Context context, float pxValue) {
final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
return (int) (pxValue / fontScale + 0.5f);
}
/**
* 将sp值转换为px值，保证文字大小不变
*
* @param spValue （DisplayMetrics类中属性scaledDensity）
* @return
*/
public static int sp2px(float spValue) {
final float fontScale = Resources.getSystem().getDisplayMetrics().scaledDensity;
return (int) (spValue * fontScale + 0.5f);
}
/**
* 根据屏幕宽度确定图片显示的高度
*
* @param screenWidth
* @param bitmap
* @return
*/
public static int getScreenPicHeight(int screenWidth, Bitmap bitmap) {
int picWidth = bitmap.getWidth();
int picHeight = bitmap.getHeight();
int picScreenHeight = 0;
picScreenHeight = (screenWidth * picHeight) / picWidth;
return picScreenHeight;
}
/**
* 读取流中的数据
*
* @param is
* @return
* @throws Exception
*/
public static String readFromStream(InputStream is) throws Exception {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = is.read(buffer)) != -1) {
bos.write(buffer, 0, len);
}
is.close();
String result = bos.toString();
bos.close();
return result;
}
/**
* 将Bitmap转换成Base64字符串
*
* @param bmp
* @return
*/
public static String bitmap2StrByBase64(Bitmap bmp) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 80, stream);
return Base64.encodeToString(stream.toByteArray(), Base64.DEFAULT);
}
/**
* 将String转换成Base64字符串
*
* @return
*/
public static String encodeBase64(String str) {
return Base64.encodeToString(str.getBytes(), Base64.DEFAULT);
}
/**
* 获取sha1值
*
* @param val
* @return
* @throws NoSuchAlgorithmException
* @throws UnsupportedEncodingException
*/
public static byte[] sha1(String val) throws NoSuchAlgorithmException,
UnsupportedEncodingException {
byte[] data = val.getBytes("utf-8");
MessageDigest mDigest = MessageDigest.getInstance("sha1");
return mDigest.digest(data);
}
/**
* 判断某个服务是否正在运行的方法
*
* @param mContext
* @param serviceName 是包名+服务的类名（例如：net.loonggg.testbackstage.TestService）
* @return true代表正在运行，false代表服务没有正在运行
*/
public static boolean isServiceWork(Context mContext, String serviceName) {
boolean isWork = false;
ActivityManager myAM = (ActivityManager) mContext
.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningServiceInfo> myList = myAM.getRunningServices(40);
if (myList.size() <= 0) {
return false;
}
for (int i = 0; i < myList.size(); i++) {
String mName = myList.get(i).service.getClassName().toString();
if (mName.equals(serviceName)) {
isWork = true;
break;
}
}
return isWork;
}
/**
* 判读手机网络是否是wifi
*
* @param context
* @return
*/
public static boolean isWifi(Context context) {
ConnectivityManager connectMgr = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo info = connectMgr.getActiveNetworkInfo();
return info != null && info.getType() == ConnectivityManager.TYPE_WIFI;
}
/*
* 获得应用版本名称
*/
public static String getVersionName(Context context) {
PackageManager pm = context.getPackageManager();
try {
// 获得清单文件的信息
PackageInfo info = pm.getPackageInfo(context.getPackageName(), 0);
return info.versionName;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
return "";
}
}
/**
* 获取最大音量
*
* @param context
* @return
*/
public static int getMaxVolume(Context context) {
return ((AudioManager) context.getSystemService(Context.AUDIO_SERVICE))
.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
}
/**
* 获取当前音量
*
* @param context
* @return
*/
public static int getCurVolume(Context context) {
return ((AudioManager) context.getSystemService(Context.AUDIO_SERVICE))
.getStreamVolume(AudioManager.STREAM_MUSIC);
}
/**
* 设置当前音量
*
* @param context
* @param index
*/
public static void setCurVolume(Context context, int index) {
((AudioManager) context.getSystemService(Context.AUDIO_SERVICE))
.setStreamVolume(AudioManager.STREAM_MUSIC, index, 0);
}
/**
* 手机号验证
*
* @param phone
* @return
*/
public static boolean checkPhone(String phone, boolean toast) {
if (TextUtils.isEmpty(phone)) {
if (toast) ToastUtils.showToast("手机号为空");
return false;
}
if (phone.length() != 11 || !phone
.matches("^((13)|(14)|(15)|(17)|(18))\\d{9}$")) {
if (toast) ToastUtils.showToast("手机号格式不对");
return false;
}
return true;
}
/**
* 手机号验证
*
* @param phone
* @return
*/
public static boolean checkPhone(String phone) {
return checkPhone(phone, false);
}
/**
* 设置屏幕的背景透明度
*
* @param bgAlpha 0.0-1.0
*/
public static void setBackgroundAlpha(Activity activity, float bgAlpha) {
WindowManager.LayoutParams lp = activity.getWindow().getAttributes();
lp.alpha = bgAlpha; //0.0-1.0
activity.getWindow().setAttributes(lp);
}
}